EP0537536B1 - Vorrichtung zum automatischen Ankuppeln von Versorgungsleitungen an ein metallurgisches Gefäss - Google Patents

Vorrichtung zum automatischen Ankuppeln von Versorgungsleitungen an ein metallurgisches Gefäss Download PDF

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Publication number
EP0537536B1
EP0537536B1 EP92116524A EP92116524A EP0537536B1 EP 0537536 B1 EP0537536 B1 EP 0537536B1 EP 92116524 A EP92116524 A EP 92116524A EP 92116524 A EP92116524 A EP 92116524A EP 0537536 B1 EP0537536 B1 EP 0537536B1
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EP
European Patent Office
Prior art keywords
coupling
ladle
mobile element
automatic
coupling device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP92116524A
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English (en)
French (fr)
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EP0537536A1 (de
Inventor
Hubert Stomp
Albert Feitler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Paul Wurth SA
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Paul Wurth SA
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Application filed by Paul Wurth SA filed Critical Paul Wurth SA
Publication of EP0537536A1 publication Critical patent/EP0537536A1/de
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Anticipated expiration legal-status Critical
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D1/00—Treatment of fused masses in the ladle or the supply runners before casting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D1/00—Treatment of fused masses in the ladle or the supply runners before casting
    • B22D1/002—Treatment with gases
    • B22D1/005—Injection assemblies therefor
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/42—Constructional features of converters
    • C21C5/46—Details or accessories
    • C21C5/4606—Lances or injectors
    • C21C5/462—Means for handling, e.g. adjusting, changing, coupling

Definitions

  • the present invention relates to a device for automatically coupling a metallurgical ladle to pipes in a structure capable of receiving the ladle.
  • Said device comprising a first coupling half associated with the pipes of said structure and a second coupling half associated with the pocket, these coupling half being designed to automatically couple in a predefined coupling position on said structure by simple introduction of the pocket in this structure.
  • Said coupling station comprises a first pneumatic translation cylinder, from which a second pneumatic coupling cylinder is suspended in a pendulum.
  • the latter axially supports a female connection element which is connected to said gas distribution network.
  • This female element can be engaged under the action of the two pneumatic cylinders on a male connection element which is arranged on the metallurgical ladle and connected to a gas pipe installed thereon.
  • this coupling station is a fairly complex and bulky mechanism, for which it is often impossible in practice to find on the structure receiving the pocket the space necessary for its installation.
  • the coupling and decoupling actions must still be initiated manually. If you forget the decoupling operation before releasing the bag, it can result in severe damage to the coupling station.
  • the coupling device comprises a half-coupling with a female connector, fixed on the pocket and a half-coupling with a male connector, fixed on the chassis of the treatment station, at the location even where mating is to take place.
  • the devices proposed in the two Luxembourg patent specifications therefore allow automatic coupling of the bag to the gas network (s), without manual intervention and without any other operation than the simple introduction of the bag into the receiving structure. the pocket.
  • the proposed devices use the movement of the pocket to achieve the junction of the male and female connection elements. As a result, there is no need for a bulky coupling station to make the connection of the bag to the gas network.
  • the objective of the present invention is to provide a coupling device of the kind described in the preamble, in which said first coupling half is automatically protected against splashes and projections of molten products, the deposition of dust and especially impacts mechanical as soon as the pocket has left said structure, without hampering the automatic coupling of the two half-couplings by the simple introduction of the pocket into said structure.
  • a coupling device of the kind described in the preamble which is characterized by a movable element supporting said first coupling half and movable on said structure between a protected standby position and said position of predefined coupling, by first means designed to move said movable element from said protected waiting position to said coupling position, said first means being actuable by the moving pocket when the latter is introduced into said structure, and by second means designed to move said movable element from said coupling position into said protected waiting position, said second means being actuable by the moving pocket when the latter is released from said structure.
  • the proposed device automatically moves said first coupling half into a protected standby position when the metallurgical ladle is released from said structure.
  • said first half coupling is completely removed from the pocket penetration path in said structure, which naturally allows it to be given excellent protection against splashes and especially against mechanical shock.
  • said first and said second means for moving said mobile element are actuable by the moving pocket when the latter is introduced into said structure, resp. when the latter is released from said structure, the application of the protection is perfectly synchronized with the coupling operation, resp. the decoupling operation, and requires no human intervention. In this way it is not possible that the application of the protection of said first half-coupling is forgotten when releasing the pocket, just as it is not possible that the protection can hinder the operation of automatic coupling of the two half-couplings by simple introduction of the pocket into said structure.
  • Said first and second means do not in principle require any auxiliary energy. They indeed receive the energy necessary for their operation of the movement of the pocket, during its introduction into said structure resp. during its release from said structure. It will therefore be appreciated that no complex coupling station is required, provided with hydraulic and / or electric motors, to carry out the coupling operation.
  • said half couplings can, for example, form an automatic connection of a pocket. metallurgical to gas lines on a processing station.
  • Said first means advantageously comprise a lever that can be pivoted by the pocket when the latter is received in said structure. This lever can then be connected to the movable element by a control cable.
  • this cable advantageously includes a spring damper.
  • Said second means advantageously comprise an element capable of storing energy, eg a counterweight connected to the movable element by a control cable.
  • the movable element supporting said first coupling half is preferably a roller trolley sliding on a solid rail of the treatment station. This rail is then advantageously protected by a canopy.
  • Said first coupling half is preferably cantilevered on the carriage by means of an easily removable articulation whose axis is parallel to the coupling axis. In this way said first coupling half has a first degree of freedom in a plane perpendicular to the coupling axis.
  • the coupling position of the movable element can be advantageously defined by an end of travel stop provided with a spring. In this way one can achieve with simple means a second degree of freedom of said first coupling half.
  • the element supporting said first coupling half is a pivotable arm. This arm is then mounted using a cylindrical articulation on the structure receiving the metallurgical ladle.
  • the translational movement on rail is consequently replaced by a pivoting movement ended and outside a protected standby position. This pivoting is always controlled by said first and second means.
  • said first means, said second means and the movable element supporting said first coupling are advantageously arranged in existing voids in the structure receiving the pocket and that they are interconnected by control cables guided using deflection pulleys. There is therefore a great deal of freedom with regard to the arrangement of the various elements in said structure receiving the pocket.
  • a metallurgical ladle 1 is completely engaged in a treatment station 2 and rests on a seat 3 of this treatment station.
  • Elements 4 and 5 are half-couplings of a double-flow quick coupling, for the automatic and simultaneous connection of the metallurgical ladle 1 to two different gas networks, as described in patent specification LU-87 868.
  • the proposed device may also include other types of quick couplings which automatically couple, in a predefined position on the treatment station 2, when the pocket 1 enters its seat.
  • the coupling half 5 is fixed on the outer envelope of the pocket 1.
  • the coupling half 4 which comprises a body 10 on which is mounted a male connector 8 connected to one or more fluid supply pipes 11, is cantilevered on a mobile carriage 6.
  • the mounting of the coupling half 4 on the carriage 6 is preferably carried out in a removable manner by means of 'A vertical clevis joint 7 allowing slight angular displacement.
  • the male connector 8 thus has a first degree of freedom in a horizontal plane to balance misalignments during coupling.
  • a second degree of freedom in the same plane, but perpendicular to the first, is for example obtained, in a manner known per se, by a sliding assembly of said male connector 8 on the body 10 of the lower coupling half 4.
  • This second degree of freedom could however also be obtained by determining for the carriage 6 a coupling position using a limit stop provided with a spring (not shown).
  • This spring then has its axis of compression parallel to the movement of the carriage 6 and thus makes it possible to compensate for misalignments in the direction of movement of the carriage 6 during the coupling operation.
  • the fluid supply pipe (s) 11 of the coupling half 4 are connected by flexible pipes (not shown) to the fluid distribution network (s) on the treatment station 2.
  • the carriage 6 is, in a preferred embodiment, a welded assembly composed of two parts 12 which are symmetrical relative to the vertical plane containing the axis of a rail 15 (see Figure 4). At their lower end, these parts 12 support a tenon 13 in which the vertical articulation 7 is housed.
  • the carriage 6 has on each side a pair of rollers 14. With the help of these rollers 14 the carriage 6 is suspended from the rail 15.
  • the latter has for example an I-section, which is advantageously made by welding two U-shaped profiles on each side of a flat iron 16 fixed on a support structure 17.
  • the axis of the rail 15 intersects the vertical coupling axis, defined by the position of the upper coupling half 5 on the pocket 1 when the latter is seated on its seat 3.
  • the structure 17 which supports the rail 15 is housed in a void between the chassis of the treatment station 2 and the pocket 1. It is covered by an inclined sheet 18 and has laterally, on the side of the pocket 1, a protection by a vertical sheet 19. This assembly forms a canopy 20 which protects the rail 15 over its entire length.
  • FIG. 5 we see an inter-support lever with two arms 24, 26 which is provided with a fork joint 22 with a horizontal axis.
  • the clevis of the joint is mounted on the chassis of the treatment station 2 so that the lever 21 can pivot in a vertical plane, preferably passing through the vertical axis of the pocket 1 installed in its seat 3.
  • the lever 21 is advantageously installed under a canopy 23 which protects it in particular against projections of molten materials.
  • the end of the arm 24 of the inter-support lever 21 is located in the path of penetration of the pocket 1 in the treatment station 2.
  • the contact surface between the lever 21 and the pocket 1 advantageously consists of a roller 25 with horizontal axis, fixed at the end of the lever arm 24.
  • the arm 26 of the inter-support lever 21 comprises at its end a spring damper 27 to which a control cable is fixed 28.
  • the spring damper 27 is of preferably articulated around a horizontal axis to ensure alignment with the cable 28 for the different positions of the lever 21.
  • the other end of the cable 28 is fixed to the carriage 6.
  • the cable 28 is guided by different deflection pulleys and dismissal. Its path is determined so as to be able to exert, during a positive rotation of the lever 21 around its axis 22, on the carriage 6 a traction parallel to the rail 15 (see Figure 5).
  • the operation of the first means is as follows: when descending into the treatment station 2 the bag 1, suspended from an overhead crane, takes up at a determined location from its descent trajectory, pressing on the roller 25 of the lever arm 24. The latter is then in an almost horizontal position, because the carriage 6 is in its extreme standby position (B) (see Figure 3) and the counterweight 31 is lowered to the maximum. Continuing its vertical descent trajectory, the pocket 1 pivots the lever 21 around its articulation axis 22 in the positive direction defined in FIG. 5. The other lever arm 26 then exerts traction via the cable 28 on the carriage 6 for gradually moving it and in synchronism with the downward movement of the pocket from the extreme standby position (B) to the coupling position (A).
  • a return cable 29 is fixed to the carriage 6 using an appropriate fixing device and is held parallel to the axis of the rail 15 by a deflection pulley 30 which is mounted in a recess in the chassis of the treatment station 2.
  • a counterweight 31 which moves in a counterweight box 32 whose vertical axis is advantageously tangent to the deflection pulley 30.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Furnace Charging Or Discharging (AREA)
  • Intermediate Stations On Conveyors (AREA)

Claims (11)

  1. Vorrichtung zum automatischen Ankuppeln einer metallurgischen Pfanne (1) an Rohrleitungen (11) in einer Tragkonstruktion (2), die die Pfanne (1) aufnehmen kann, wobei die Vorrichtung eine erste Kupplungshälfte (4) aufweist, die mit den Rohrleitungen (11) der Tragkonstruktion (2) verbunden ist, und eine zweite Kupplungshälfte (5) aufweist, die mit der Pfanne (1) verbunden ist, und diese Kupplungshälften (4, 5) ausgelegt sind, um in einer vorher festgelegten Ankuppelposition (A) auf der Tragkonstruktion (2) bei Einführung der Pfanne (1) in diese Tragkonstruktion (2) automatisch zusammengekuppelt zu werden, wobei die Vorrichtung gekennzeichnet ist, durch ein bewegliches Element (6) gekennzeichnet ist, das die erste Kupplungshälfte (4) trägt und auf der Tragkonstruktion (2) zwischen einer geschützten Warteposition (B) und der vorher festgelegten Ankuppelposition (A) verschiebbar ist, durch erste Mittel, die ausgelegt sind, um das bewegliche Element (6) von der geschützten Warteposition (B) nach der Ankuppelposition (A) zu verschieben, wobei die ersten Mittel durch die bewegte Pfanne (1) betätigbar sind, wenn diese Pfanne in die Tragkonstruktion (2) eingeführt wird, und durch zweite Mittel, die ausgelegt sind, um das bewegliche Element (6) von der Ankuppelposition (A) nach der geschützten Warteposition (B) zu verschieben, wobei die zweiten Mittel durch die bewegte Pfanne (1) betätigbar sind, wenn diese Pfanne aus der Tragkonstruktion (2) herausgenommen wird.
  2. Vorrichtung zum automatischen Ankuppeln gemäß Anspruch 1, dadurch gekennzeichnet, daß die Kupplungshälften (4, 5) eine automatische Verbindung zwischen einer metallurgischen Pfanne und Gasleitungen (11) auf einer Behandlungsstation (2) bilden.
  3. Vorrichtung zum automatischen Ankuppeln gemäß Anspruch 1 oder 2, dadurch gekennzeichnet, daß die ersten Mittel einen Hebel (21) aufweisen, der durch die Pfanne (1) schwenkbar ist, wenn diese Pfanne in der Tragkonstruktion (2) aufgenommen wird, und der über ein Steuerseil (28) mit dem beweglichen Element verbunden ist.
  4. Vorrichtung zum automatischen Ankuppeln gemäß Anspruch 3, dadurch gekennzeichnet, daß das Steuerseil (28), das den Hebel (21) mit dem beweglichen Element (6) verbindet, einen Federstoßdämpfer (27) umfaßt.
  5. Vorrichtung zum automatischen Ankuppeln gemäß irgendeinem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die zweiten Mittel ein Gegengewicht (31) aufweisen.
  6. Vorrichtung zum automatischen Ankuppeln gemäß irgendeinem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß das bewegliche Element, das die erste Kupplungshälfte (4) trägt, ein Wagen (6) mit Rollen (14) ist, der auf einer Schiene (15) verschiebbar ist, die mit der Tragkonstruktion (2), die die Pfanne (1) aufnimmt, fest verbunden ist.
  7. Vorrichtung zum automatischen Ankuppeln gemäß Anspruch 6, dadurch gekennzeichnet, daß die Schiene (15) durch ein Schutzdach (20) geschützt ist.
  8. Vorrichtung zum automatischen Ankuppeln gemäß Anspruch 6 oder 7, dadurch gekennzeichnet, daß die erste Kupplungshälfte (4) über ein zylindrisches Gelenk (7), das leicht abmontierbar ist, und dessen Achse parallel zu der Kupplungsachse ist, auf dem Wagen (6) freitragend angebracht ist.
  9. Vorrichtung zum automatischen Ankuppeln gemäß irgendeinem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß die Ankuppelposition (A) des beweglichen Elements (6) durch einen Hubende-Anschlag festgelegt ist, der auf einer Feder angebracht ist, deren Achse senkrecht zu der Kupplungsachse ist.
  10. Vorrichtung zum automatischen Ankuppeln gemäß irgendeinem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß das bewegliche Element (6), das die erste Kupplungshälfte (4) trägt, ein schwenkbarer Arm ist.
  11. Vorrichtung zum automatischen Ankuppeln gemäß irgendeinem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß die ersten Mittel, die zweiten Mittel, und das bewegliche Element (6), das die erste Kupplungshälfte (4) trägt, in den vorhandenen Zwischenräumen einer Behandlungsstation (2) angeordnet sind, und durch Steuerseile (28 und 29), die mit Hilfe von Umlenkscheiben geführt werden, miteinander verbunden sind.
EP92116524A 1991-10-09 1992-09-28 Vorrichtung zum automatischen Ankuppeln von Versorgungsleitungen an ein metallurgisches Gefäss Expired - Lifetime EP0537536B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
LU88014A LU88014A1 (fr) 1991-10-09 1991-10-09 Dispositif d'accouplement automatique entre des conduites sur une station de traitement et une poche métallurgique
LU88014 1991-10-09

Publications (2)

Publication Number Publication Date
EP0537536A1 EP0537536A1 (de) 1993-04-21
EP0537536B1 true EP0537536B1 (de) 1996-11-13

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Application Number Title Priority Date Filing Date
EP92116524A Expired - Lifetime EP0537536B1 (de) 1991-10-09 1992-09-28 Vorrichtung zum automatischen Ankuppeln von Versorgungsleitungen an ein metallurgisches Gefäss

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Country Link
EP (1) EP0537536B1 (de)
AT (1) ATE145161T1 (de)
DE (1) DE69215190T2 (de)
ES (1) ES2095996T3 (de)
LU (1) LU88014A1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU88457A1 (fr) * 1994-02-02 1995-09-01 Wurth Paul Sa Dispositif pour l'accouplement d'un chariot métallurgique à une conduite flexible
LU88594A1 (de) * 1995-03-03 1996-10-04 Wurth Paul Sa Vorrichtung zum automatischen Ankuppeln einer Giesspfanne an eine oder mehrere Gasleitungen
LU90564B1 (fr) * 2000-04-13 2001-10-15 Wurth Paul Sa Dispositif de raccordement pour raccorder une poche m-tallurgique - un r-seau d'alimentation

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2831647C2 (de) * 1978-07-19 1980-02-21 Mannesmann Demag Ag, 4100 Duisburg Kupplung zum Anschließen von Versorgungsgasleitungen an metallurgischen Gefäßen
AT365958B (de) * 1980-06-30 1982-02-25 Voest Alpine Ag Metallurgisches gefaess
US4502670A (en) * 1984-02-02 1985-03-05 Allied Corporation Gas hook-up to a ladle
LU87082A1 (fr) * 1987-12-18 1989-07-07 Wurth Paul Sa Dispositif d'accouplement d'une poche metallurgique a un reseau de gaz

Also Published As

Publication number Publication date
DE69215190D1 (de) 1996-12-19
EP0537536A1 (de) 1993-04-21
DE69215190T2 (de) 1997-05-15
LU88014A1 (fr) 1993-05-17
ATE145161T1 (de) 1996-11-15
ES2095996T3 (es) 1997-03-01

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